Some thoughts from RevUp Transmedia regarding the imment release of the new Mac Pro and presumably FCP X 10.1:
I expect Final Cut Pro X 10.1 to be a major version upgrade. I expect it to not only add jaw-dropping new original features, but also add back some of the requested features that have been missing from Final Cut Pro X in its first 2+ years. According to Apple, there have been no major FCPX feature updates for a year. It looks like they've been saving the new features for 10.1.